package chapter03.example02;
class Student2{
    String name;
    int age;
    void read(){
        System.out.println("大家好，我是"+name+"，年龄"+age);
    }
}
public class Example02 {
    public static void main (String[] args) {
        Student2 stu1 = new Student2 () ;
        Student2 stu2 = null;
        stu2 = stu1;
        stu1.name = "小明";
        stu1.age =20;
        stu2.age =50;
        stu1.read () ;
        stu2.read () ;
    }
}
